docs: fix summary contents at readme (#1025)

Author: starfish719

README.md

@@ -5,25 +5,27 @@
 
 - [Overview](#overview)
 - [Installation](#installation)
-- [Quickstart](#quick-start)
-- [What is MCP?](#what-is-mcp)
+- [Quick Start](#quick-start)
 - [Core Concepts](#core-concepts)
     - [Server](#server)
-    - [Resources](#resources)
     - [Tools](#tools)
+    - [Resources](#resources)
     - [Prompts](#prompts)
     - [Completions](#completions)
+    - [Display Names and Metadata](#display-names-and-metadata)
     - [Sampling](#sampling)
 - [Running Your Server](#running-your-server)
-    - [stdio](#stdio)
     - [Streamable HTTP](#streamable-http)
+    - [stdio](#stdio)
     - [Testing and Debugging](#testing-and-debugging)
 - [Examples](#examples)
     - [Echo Server](#echo-server)
     - [SQLite Explorer](#sqlite-explorer)
 - [Advanced Usage](#advanced-usage)
     - [Dynamic Servers](#dynamic-servers)
+    - [Improving Network Efficiency with Notification Debouncing](#improving-network-efficiency-with-notification-debouncing)
     - [Low-Level Server](#low-level-server)
+    - [Eliciting User Input](#eliciting-user-input)
     - [Writing MCP Clients](#writing-mcp-clients)
     - [Proxy Authorization Requests Upstream](#proxy-authorization-requests-upstream)
     - [Backwards Compatibility](#backwards-compatibility)